Compare two webpage versions and return only meaningful content changes as struc
Compare two webpage versions and return only meaningful content changes as structured JSON. Filters cosmetic DOM churn, tracking IDs, timestamps, and other noise.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
672 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws/v1/semantic-web-diff
| Category | Search and research |
|---|---|
| Provider host | i3p3mgbsn54dvlivnk6wbumal40eqtsn.lambda-url.us-east-1.on.aws |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.02 | 672 ms |
Example input (from the provider)
{
"body": {
"mode": "text",
"newContent": "Price: $12/month",
"oldContent": "Price: $10/month"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"anyOf": [
{
"additionalProperties": false,
"properties": {
"contentType": {
"enum": [
"html",
"markdown",
"text"
],
"type": "string"
},
"focus": {
"items": {
"type": "string"
},
"type": "array"
},
"mode": {
"const": "text",
"type": "string"
},
"newContent": {
"type": "string"
},
"oldContent": {
"type": "string"
}
},
"required": [
"mode",
"oldContent",
"newContent"
],
"type": "object"
},
{
"additionalProperties": false,
"properties": {
"focus": {
"items": {
"type": "string"
},
"type": "array"
},
"mode": {
"const": "url",
"type": "string"
},
"newUrl": {
"format": "uri",
"type": "string"
},
"oldUrl": {
"format": "uri",
"type": "string"
}
},
"required": [
"mode",
"oldUrl",
"newUrl"
],
"type": "object"
}
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"changes": {
"items": {
"additionalProperties": false,
"properties": {
"category": {
"type": "string"
},
"confidence": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"evidenceNew": {
"type": "string"
},
"evidenceOld": {
"type": "string"
},
"newValue": {
"type": "string"
},
"oldValue": {
"type": "string"
},
"severity": {
"enum": [
"low",
"medium",
"high",
"critical"
],
"type": "string"
}
},
"required": [
"category",
"severity",
"oldValue",
"newValue",
"evidenceOld",
"evidenceNew",
"confidence"
],
"type": "object"
},
"type": "array"
},
"confidence": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"ignoredNoise": {
"items": {
"type": "string"
},
"type": "array"
},
"meaningfulChange": {
"type": "boolean"
},
"severity": {
"enum": [
"none",
"low",
"medium",
"high",
"critical"
],
"type": "string"
},
"summary": {
"type": "string"
}
},
"required": [
"meaningfulChange",
"severity",
"confidence",
"summary",
"changes",
"ignoredNoise"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}